Supports an external list of stopwords (words that
will not be indexed at all) and an external list of exclusions (word that will
not be stemmed, but indexed).
A default set of stopwords is used unless an alternative list is specified, but the
exclusion list is empty by default.

You must specify the required Version
compatibility when creating FrenchAnalyzer:

As of 3.6, FrenchLightStemFilter is used for less aggressive stemming.

As of 3.1, Snowball stemming is done with SnowballFilter,
LowerCaseFilter is used prior to StopFilter, and ElisionFilter and
Snowball stopwords are used by default.